CN107251643B - Method and apparatus and computer-readable medium for radio resource control - Google Patents
Method and apparatus and computer-readable medium for radio resource control Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/27—Transitions between radio resource control [RRC] states
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/19—Connection re-establishment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/30—Connection release
- H04W76/34—Selective release of ongoing connections
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Abstract
Radio resource control pausing operation and radio resource control recovery operation.The related corresponding radio resource control information of configured connection status of terminal (702,1300) and communication network (110) storage and terminal (702,1300).This method includes that admission control processing is executed during radio resource control recovery operation, wherein, admission control procedure includes checking it is to restore connection status according to the radio resource configuration information stored or execute radio resource reconfiguration process with the process for restoring the connection status.
Description
Technical field
The present invention relates to the method for radio resource control in communicating network entities, and be related to designed for support terminal and
The correspondence communicating network entities of communication between communication network including communicating network entities, wherein in one or more radio
The communication between communication network and terminal is carried in resource.
Background technique
The example of the basic framework for wireless communication is shown in Fig. 1.One or more terminals 101 are (for example, user
Terminal, such as user equipment (UE)) use radio resource 120 (carrying of such as E-RAB (E-UTRAN Radio Access Bearer))
It is communicated with communication network 110.Communication network 110 may include access net 102 (e.g., including the base station of such as eNB) with
And communication control net 103 (for example, core net of such as evolution block core).
In the standardized context of 3GPP, it has been recognized that establishment of connection between terminal and communication network and tear open
Except can lead to significant signaling overheads.In order to reduce signaling overheads, it has been suggested that reuse from the previous connection stored
Information, rather than whenever occur terminal idle state (connect) conversion between state with activation when be carried out completely
Connection is established.More specifically, V.1.2.0 3GPP TR 23.720 suggested two processes in 6.5.1.2 and 6.5.1.3 section,
Referred to as RRC pause and RRC restore.
Summary of the invention
It is an object of the present invention to provide the improvement to the above-mentioned type system.
The present invention relates to a kind of systems, and within the system, terminal and communication network are arranged to support radio resource control
Pausing operation processed and radio resource control recovery operation.In radio resource control pausing operation, terminal and communication network
Each of storage corresponding radio resource control information related with the configured connection status of terminal.Radio resource control
Information processed includes belonging to the radio resource that radio resource associated with configured connection status (for example, carrying) is gathered to match
Confidence breath.In radio resource control recovery operation, radio resource that terminal and each self-reference of communication network store respectively
Information is controlled with the connection status for restoring the terminal.
According to one embodiment, propose in communicating network entities designed for supporting terminal and including communication network reality
The method for radio resource control of communication between the communication network of body.Communication network is carried on one or more radio resources
Communication between network and terminal.This method comprises:
Execute admission control procedure during radio resource control recovery operation, wherein admission control procedure include with
Lower process: inspection is to restore the connection status according to the radio resource configuration information stored, or execute radio
Resource reconfiguration process is for restoring the connection status.
According to another embodiment, propose designed for support terminal and communication network including the communicating network entities it
Between communication communicating network entities.The communication between communication network and terminal is carried on one or more radio resources.
Communicating network entities include radio resource control, execute and are permitted during being arranged in radio resource control recovery operation
Controllable process.Admission control procedure includes following procedure: inspection is according to the radio resource configuration information stored come extensive
The multiple connection status, or radio resource reconfiguration process is executed for restoring the connection status.
According to another embodiment, it proposes in a kind of terminal designed for supporting the communication between terminal and communication network
Method for radio resource control.The communication between communication network and terminal is carried on one or more radio resources.The party
Method includes:
Radio resource control recovery process is executed, the radio resource control recovery process comprises determining that it is basis
The radio resource configuration information stored restores the connection status, or uses different radio resource configuration information
For restoring the connection status.
According to another embodiment, a kind of terminal designed for supporting the communication between terminal and communication network is proposed.
The communication between communication network and terminal is carried on one or more radio resources.Terminal includes radio resource control
Device, the radio resource control are arranged to execute radio resource control recovery process, the radio resource control
It is to restore the connection status according to the radio resource configuration information stored, or use that recovery process, which comprises determining that,
Different radio resource configuration information is for restoring the connection status.
According to above-described embodiment, the communication system of radio resource control pause and radio resource control recovery operation is supported
The improvement of system is that if necessary or expectation uses the radio different from the set of radio resources configured when suspending and communicating
Resource distribution restores the connection status of terminal, then by the admission control procedure in proposed communicating network entities and is mentioned
Radio resource control recovery process in terminal out, this becomes possible.
Detailed description of the invention
Fig. 1 shows the schematic diagram of the basic system architecture of the wireless communication using radio resource；
Fig. 2 shows the examples of communication network；
Fig. 3 shows the example of management system；
Fig. 4 shows the process based on S1/EPS framework described in 6.5 sections of 3GPP TR 23.720 V.1.2.0；
Fig. 5 shows radio resource control pausing operation；
Fig. 6 shows radio resource control recovery operation；
Fig. 7 schematically shows the embodiment of method for radio resource control；
Fig. 8 schematically shows the flow chart of the example of admission control procedure；
Fig. 9 schematically shows another embodiment of method for radio resource control；
Figure 10 schematically shows another embodiment of method for radio resource control；
Figure 11 schematically shows another embodiment of method for radio resource control；
Figure 12 shows the block diagram of network entity；
Figure 13 shows the block diagram of terminal；
Figure 14 schematically illustrates the general introduction of method for radio resource control according to another embodiment；
Figure 15 schematically illustrates the general introduction of method for radio resource control according to another embodiment；
Figure 16 show may include information in S1:UE context activation/positive acknowledgement message example；
Figure 17 shows another examples that may include information in S1:UE context activation/positive acknowledgement message；
Figure 18 schematically illustrates the general introduction of method for radio resource control according to another embodiment.
Specific embodiment
Hereinafter, with reference to specific example and it will realize and describe idea of the invention, however, these embodiments not purport
It is being restrictive, and is being only used for that idea of the invention is better described.
For example, some realities being listed below are with reference to EPS/LTE framework (EPS=evolved packet system；LTE=is long-term
Evolution) and EPS/LTE radio access technologies, and therefore with reference to the related protocol on relevant interface.However, this is intended only as showing
Example, and present invention may apply to some of them connection relevant information stored in pausing operation (or cache) and
It is reused and (is modified in reusing) in recovery operation (such as wirelessly to be set for subsequent connection or network and terminal
It is standby) between affairs (data exchange) other wireless communication techniques.
As the example of communication network, the framework of LTE system is shown in Fig. 2, belongs to access net including that can be considered as
Radio access node (eNB, family eNB (HeNB), HeNB GW (GW=gateway)), and can be considered as belonging to as communication
Control evolution block core node (MME/S-GW (the MME=mobility management entity of the exemplary core net of network；S-GW=
Gateway)).As can be seen that HeNB/eNB is connected to MME/S-GW and HeNB is connected to HeNB GW by S1 interface, and X2
Interface connects equity eNB/HeNB.
In this application, term " node " and " entity " will be interchangeably used as and will be designed to provide in a network
The network element of given function is related, and its physical unit that can be implemented as single physical unit or multiple connections and interaction.This
Outside, node or entity can be embodied by way of any suitable combination of hardware, software or hardware and software.
The example of management system is shown in FIG. 3.Node unit (NE) (also known as eNB) (is gone back by domain manager (DM)
Referred to as operation and support system (OSS)) management.DM can also be managed by network manager (NM).Interface is carried out to two NE by X2
Connection, and the interface between two DM is referred to as Itf-P2P.Management system can configure network unit, and reception and network unit
In the associated observation (observation) of feature.For example, DM observes and configures NE, NM observe and configure DM and via
DM is observed and is configured NE.By the configuration via DM, NM and relevant interface, the function on X2 and S1 interface can be in entire RAN
It is executed in a coordinated fashion on (radio access network), may relate to core net (CN), for example, MME and S-GW.
In order to meet the needs of more business and adapt to the flexibility of different kinds of business, so far, such as LTE etc
The development of wireless communication system be concentrated mainly on radio interface, wherein taking great effort come for example, by passing through object
Reason layer, which improves, improves spectrum efficiency to improve radio capability.Business increase another aspect be terminal (wireless telecom equipment,
It can realize in many ways, such as UE, mobile phone, smart phone, data modem unit, mobile computer, vehicle
, sensor, actuator etc.) with the increase between network by means of controlling the quantity that the associated connection of plane signaling is established.
On the one hand the latter is it should be understood that be to the radio resource for carrying out signal notice by (such as Uu) interface appropriate
Demand, and be on the other hand then the requirement for processing capacity and signaling in disposed infrastructure.It is carried out in 3GPP
Or ongoing many researchs (such as about EDDA (various data application enhancing) or the research of MTC (machine type communication) with
Job) it confirms and pays particular attention to the field.
The concept of UE context pause solves the letter reduced between UE and network (similarly, between RAN and CN node)
The expectation of order.In addition, it enables network node to spend more appearances by spending less processing energy in signaling
Amount is in business growth, especially in the case where UE frequently establishes the connection with network (again).What signaling and processing were reduced
The result is that delay reduction experienced when being transformed into RRC-Connected from RRC-Idle.In particular, lasting control plane signaling
Amount decreases the battery of UE.Therefore, signaling overheads reduction will necessarily lead to improved UE battery consumption.Current base
The conversion of the UE state used in the EPS framework of S1 (i.e. in the free time and when having connected the conversion between (that is, activate) state) institute
The process needed is made that significant contribution to signaling overheads.
Fig. 4 is shown based on the mistake based on S1/EPS framework described in 6.5 sections V.1.2.0 of 3GPP TR 23.720
Journey, the process is for establishing and removing connection, so that UE can be transmitted/receive user face, that is, is suitable for UE free time/connection shape
The process of state conversion.As can be seen that there are significant signaling overheadss on radio/Uu, S1AP interface.In order to reduce above-mentioned mistake
Signaling overheads and associated processing load in the communication network of Cheng Suoxu, propose a solution, based in the future
It reuses from the information of previous RRC connection in subsequent RRC connection foundation.By introducing two new processes, " RRC is temporary
Stop " and " RRC recovery " may be implemented signaling overheads reduction, in the 6.5.1.2 item and 6.5.1.3 item of 23.720 v1.2.0 of TR
In be described.
Therefore, a non-limiting example of radio resource control pausing operation is shown in Fig. 5.It can be from RRC
Suspend process using RRC when connecting the conversion of (or state of activation) to the new RRC state for corresponding to halted state.In the disclosure
In context, refer to that storage connect related context with RRC about the term for connecting related " pause " with such as RRC
(or storage RRC connection data) and one of the following or multiple:
Forbid transmitting user face data between mobile device and RAN node, but mobile device still is able to save from RAN
Point receives paging and/or receives down link data notice from RAN node；
RAN node indicates that mobile device is executed with the same or similar function of idle mode functionality (for example, it may be possible to just
The paging and mobile process different with mobile process are paged used in the RRC connection mode of normal or non-pause) and
Discharge air interface associated with the RRC connection between RAN node and mobile device or radio link or nothing
Line electric resources, but mobile device still is able to receive paging from RAN node and/or receives down link data from RAN node
Notice.
The state can be referred to as RRC pause (RRC-SUSPENDED), and (it is similar to idle state, therefore can also claim
It is idle (RRC-IDLE) for RRC)；
- eNB and UE stores information relevant to previous RRC connection, for example, access layer security context, carrying correlation
Information (including RoHC status information) and L2/1 parameter (when applicable).ENB is for example known as based on eNB ID to UE offer
The identifier of " restoring ID ", eNB ID can be used for addressing the relevant information of storage in the enb.
Relevant network node stores S1-MME UE association and S1-U bearer context relevant information.S1AP UE context
It can be stored and be stored in eNB and MME.In addition, eNB can store and keep S1-U tunnel address.It latter reduces and builds
Processing load on eNB needed for vertical S1-U carrying.
When under RRC-SUSPENDED state, the mobile sexual behaviour of UE is identical as under RRC-Idle state, such as UE
Using normal or extension idle mode DRX parameter, cell reselection etc. is executed.
When being transitioned into RRC-SUSPENDED, EMM (EPS mobile management；EPS=evolved packet system) layer entrance
ECM- suspends (ECM-SUSPENDED) state (ECM=EPS connection management).
With reference to Fig. 5, eight steps are shown:
Step 1: network determines pause RRC connection.
Step 2:eNB is indicated with new S1AP message to MME: the RRC connection of UE is suspended.MME and eNB storage S1AP is closed
Connection and relevant UE context.MME enters ECM state ECM-SUSPENDED.MME stores DL associated with UE and eNB
TEID。
Step 3:MME sends request release to S-GW and requests (nothing for all S1-U of UE release access bearer carried
Wired link release instruction extremely) message.SGW thinks that UE is in idle condition.
Step 4:SGW provides the response to step 3.
Step 5:MME carries out affirmative acknowledgement to step 2.
Step 6:MME enters " ECM-SUSPENDED " state.
Step 7:eNB suspends the RRC connection for going to UE.Use when can be provided in the RRC connection for then restoring the pause
Identifier.UE and eNB stores relevant contextual information, i.e. RRC configuration, connects carrying configuration (including RoHC status information)
Enter layer safe context and L2/1 parameter (when applicable).The message also includes and the K_eNB to be used in subsequent restore
Associated security algorithm configuration and next-hop chain counter (NCC).
Step 8:UE rrc layer enters halted state (such as being known as RRC-SUSPENDED state), and EMM layers of UE
Into halted state (for example, referred to as ECM-SUSPENDED state).
The non-limiting example of radio resource control recovery operation is shown in Fig. 6.From halted state to connection shape
In the conversion of state, it can use in UE and previously stored information restore RRC connection in the enb.In connection mode or shape
During state, UE can with network exchange signal and execute other relevant operations, including executing the energy communicated with the user face of network
Power, and during idle (pause) mode or state, UE can close its at least some ability and operation, and be no longer able to
Execution is communicated with the user face of network.UE provides previously received " restoring ID (Resume ID) " to be used by eNB to connect
Information needed for entering stored recovery RRC connection.In addition, it can provide the authentication token for safely identifying UE.Phase
It closes network node and restores/reuse S1-MME UE S1AP association and S1-U bearer context relevant information.It is shown in Fig. 6
11 steps:
When UE accesses network from RRC idle state by random access (RA), step 1-3 follows conventional procedure.
Step 4: in msg3 (RRC connection recovery request message), UE may include that it restores Id, authentication token, carrying
One or more of indicate, establish reason.ENB is context-sensitive by UE and previously stored UE using Id is restored.This
Outside, msg3 can also be comprising the user face that is multiplexed by MAC, wherein the stored safe context that has restored can be used to add
Close user face.
Step 5: being appointed as RRC connection here and restore in the message 4 completed, which DRB (data radio network indicates
Carrying) it is resumed, furthermore it includes restoring Id, and if applicable includes the L2/1 parameter updated.
Step 6:UE and eNB restore stored safe context.
Step 7:eNB is appointed as in the S1AP message of S1-AP UE context activation notifying UE state to change to MME here
Become.ECM in MME enters ECM connection (ECM-CONNECTED) state.MME identification UE is returned at eNB, for the eNB,
MME has stored the information about the DL TEID (downlink endpoint of a tunnel ID) for UE distribution.
To modification bearing request message of the GW transmission for each PDN connection is serviced, (address eNB is used for institute to step 8:MME
The S1TEID (DL) of the EPS carrying of receiving, the request of delay downlink packets notice, RAT type) (RAT=is wirelessly electrically accessed skill
Art).If servicing GW supports modification access bearer request process, and if service GW does not need to send signaling to PGW,
MME can send the modification access bearer request for each UE to service GW and (address eNB and carry for the EPS that is received
For downlink user face TEID, delay downlink packets notice request) to optimize signaling.Service GW now can
Down link data is sent to UE.SGW thinks that UE is in connection status.
Step 9:SGW provides the response to step 8.
Step 10:MME carries out affirmative acknowledgement to step 7.After this step, user face can be sent to SGW.
Step 11: transmission as message 4 it is alternative, if message 3 includes that user face and all user faces are all sent
Instruction, then eNB can suspend RRC connection and implicitly instruction user face be successfully received.
Therefore, it is proposed to a solution, so that the terminal of such as UE can be moved to RRC_IDLE, while can be
When UE be in RRC (radio resource control) activation (RRC_CONNECTED) state when for UE provide service RAN node and
UE context (including access layer (AS) context, such as access layer safe context, bearer related information are kept at MME respectively
With L2/1 parameter (if can apply)) and respective S1 and bearer context.UE when UE is in idle condition, as holding
A part of context, service RAN and CN can store bearer context, the net including can be applied to UE in the active mode
Network resource allocation information.It will be kept for the S1-MME signaling connection for the UE foundation for suspending its RRC connection, while MME can be with
Assuming that UE is in idle condition ECM_IDLE.When UE moves back to state of activation from idle state, TR 23.720 is V.1.2.0
Described in mechanism license UE instruction it is so-called " restore ID ", i.e., when being activated to idle conversion previous or it is any previously
Time (for example, when connection is established) be assigned to the identifier of UE.Pass through the signal notice recovery in the idle conversion to activation
ID and " carrying instruction ", UE can mark its context to be still kept to service RAN, and its should with it is all associated with it
Carrying be reactivated together.
The reason of reactivating UE context and corresponding carrying (user face and/or signal plane carrying) may be numerous
: UE may have the bearer service to be sent, and network may have the bearer service to send to UE.In above system,
When UE returns to state of activation, the EPS carrying that service eNB and MME re-establishes the UE before going to idle state is used
Radio resource.It may occur however that the case where be, when UE is moved to state of activation from idle state, to be previously assigned to
Some radio resources of UE cannot be reestablished, it is desirable alternatively to which they are modified.The latter may, for example, be due in network
Resource constraint or due to error situation associated with some carryings just talked about.
In the system of 23.720 v1.2.0 of TR, when the UE that context is suspended is moved to state of activation from idle state
When, it is not possible to modify the bearer context configuration of UE.In the idle conversion to activation, RAN and CN must be reactivated and be permitted
When the entire carrying for a part storage that UE is moved to " free time " Shi Zuowei UE context from " activation " is gathered.However, due to example
Such as lack resource in RAN or CN, network may disapprove the entire carrying set.Therefore, 23.720 v1.2.0's of TR is
The problem of system, is that it does not allow when UE is moved to state of activation to holding for the UE storage for being once moved to idle state
Carry the modification of context.According to 23.720 v1.2.0 of TR, should permit entirely to carry list.However, this may result in service
Interrupt because when no enough resources are available license carrying for licensed carrying and for licensed carrying
Mean to risk the risk that QoS deteriorates for carrying with those of equal priority.
It is proposed in the context of the radio resource control in communication between terminal and communication network of the invention
Concept, wherein carrying the communication between communication network and terminal on one or more radio resources.Such as E-RAB (E-
UTRAN radio access bearer) carrying be radio resource example.It can be provided by any suitable or desired mode
Terminal and communication network.For example, terminal can be can carry out leading to based on radio resource with the communication network suitably arranged
Any equipment of letter.The example of terminal is user terminal associated with specific machine or terminal (such as mobile phone, intelligence electricity
Words, data modem unit, mobile computer, vehicle, sensor, actuator etc.), and can for example be embodied as user equipment
(UE).The example of communication network may include access net (such as RAN) and communication control net (such as CN).
It is contemplated by the invention that a kind of system, within the system, terminal and communication network are arranged to support radio resource control
Pausing operation processed and radio resource control recovery operation.In radio resource control pausing operation, terminal and communication network
Each of storage corresponding radio resource control information related with the configured connection status of terminal.Radio resource control
Information processed includes belonging to the radio resource that radio resource associated with configured connection status (for example, carrying) is gathered to match
Confidence breath.In radio resource control recovery operation, radio resource that terminal and each self-reference of communication network store respectively
Information is controlled with the connection status for restoring terminal.
According to embodiment, present invention proposition executes admission control procedure, institute during radio resource control recovery operation
Stating admission control procedure includes following procedure: inspection is to be restored to connect shape according to the radio resource configuration information stored
State, or radio resource reconfiguration process is executed for restoring the connection status.In terminal be UE and radio provides
Source is in the system of carrying, for example, it is contemplated that when UE is moved to state of activation, in one or more entities of communication network
In there are admission control procedure, which decides whether can be according to its previously stored carrying setting (for example, for each hold
The qos parameter of load) reactivate all carryings, or whether certain carryings need to be deleted or modify.Furthermore, it is contemplated that adding
Add carrying, such as because UE needs to establish an additional service in the idle conversion to activation.
Therefore, once the connection for restoring previous pause the present invention provides terminal just allows dynamic radio resources to modify
And/or the solution that radio resource addition and/or radio resource are deleted, and wherein, communication network is wanted when restoring
The radio resource configuration for being assigned to the radio resource of terminal is different from radio resource shape of the connection of terminal when being suspended
State.
According to another embodiment, the present invention proposes to execute radio resource control recovery process in terminal side, described wireless
It is to restore the connection status according to the radio resource configuration information stored that it includes determination that electric resources, which control recovery process,
Or using different radio resource configuration information to be used to restore the connection status.
The embodiment of the present invention can be applied to the system schematically shown in Fig. 7.Network entity 701 is arranged to
It is communicated by one or more radio resources (for example, carrying) with terminal 702.Terminal 702 can be terminal as shown in Figure 1
101, network entity 701 can be the node of network 110 as shown in Figure 1.
Appended drawing reference 703 indicates to have been carried out the radio resource control pausing operation of mentioned kind.Then, terminal
702 in idle or halted state.In later point, one of element determines that giving radio resource control restores condition
(707), so that initiating radio resource control recovery operation.In the example of figure 7 it is assumed that terminal 702 is by network entity
701 transmission radio resource controls restore message 704 to initiate recovery process.For example, terminal 702 can have the number to be sent
According to, and therefore request restores connection status, the i.e. conversion from idle state to state of activation.However, it is noted that radio resource
Control recovery condition can also be detected in different nodes, for example, being directed to the down link data of terminal 702
In the case where waiting, it may wish to enter network entity 701 of the connection status for example to transmit control signaling to terminal 702
In, or another node of such as communication network belonging to network entity 701 (such as belongs to the communication control net of network 110
Node) in.
In response to trigger condition, network entity 701 executes admission control procedure 705, and admission control procedure 705 includes following
Process: inspection is to restore connection status according to the radio resource configuration information stored, or execute radio resource weight
Configuration process is for restoring connection status.
The result of admission control procedure sends terminal 702 in control message 706, then restores to connect according to result
708.However, it should be noted that being a kind of possibility to this, by being matched according to the radio resource stored during pausing operation 703
Confidence ceases radio resource is arranged, and when detecting recovery condition, terminal 702 may also have begun the extensive of connection status
It is multiple.Therefore, network entity 701 then can also be after receiving message 704, by depositing according to during pausing operation 703
Radio resource is arranged to restore to connect in the radio resource configuration information of storage.If as admission control procedure 705 as a result,
To restore connection status according to the radio resource configuration information stored, then message 706 can be simple confirmation message,
And process 708 will be only to be continued as configured.If as admission control procedure 705 as a result, radio will be based on
Resource reconfiguration process restores connection status, then message 706 may include radio resource reconfiguration information, radio money
Source reconfiguration information instruction to be executed about the radio resource configuration information stored during pausing operation 703 which change or
Indicate that the new setting for radio resource is gathered.Then, process 708 will correspondingly change radio resource configuration.
Fig. 8 is shown can be by the process of the basic skills embodiment for the admission control procedure 705 that network entity 701 executes
Figure.Such as by receiving corresponding message, step 801 instruction determines that there are radio resource controls to restore condition.Process 802 is examined
Looking into connection status is that as when it is suspended (that is, radio resource configuration having the same) to be recovered still will execute weight
Configuration.In the case where when determining to restore as being suspended, which is branched off into process 803, and is determining to utilize reconfiguration
The set of radio resources set is come in the case where restoring, which is branched off into process 804.
Can select and realize by any suitable or desired mode is the nothing based on such as storing in pausing operation
Line resource distribution determines 802 restore that connection status still reconfigures radio resource.For example, its can based on one or
It is multiple considered below:
The availability of radio resource at terminal 702,
The availability of radio resource at network entity 701,
The availability of radio resource in communication network 110 belonging to network entity 701,
Business load in communication network 110 belonging to network entity 701,
The type for the information to be transmitted under the connection status restored, for example, signaling and data or only signaling,
Needed for the connection that has restored or desired bandwidth.
Radio resource reconfiguration process 804 can be provided by any suitable or desired mode.For example, it may include
It is one or more below:
(a) it according to the radio resource configuration information stored, checks associated with the configured connection status
Which radio resource in the set of radio resources will be licensed；
(b) it checks after modifying compared to the radio resource configuration information stored, with the configured company
Which radio resource connect in the associated set of radio resources of state can be licensed；It can be by any suitable
Or desired mode select the modification, and the modification can particularly for example, with bandwidth, the waiting time, handle up
One or more of amount, error rate, mean bit rate, ensures bit rate, dispatching priority and packetization delay budget are associated
QoS parameter.
(c) which the radio money in the set of radio resources associated with the configured connection status checked
Source may be not permitted；
(d) when restoring connection status, check whether can add it is associated with the configured connection status described
The different new radio resource of radio resource.
According to another embodiment, admission control procedure includes the decision process in step 802, for determining it is to be used only specially
Restore for transmitting the radio resource of signaling connection status be also used to be exclusively used in transmission signaling radio resource and
Both radio resources of transmission data are exclusively used in restore connection status.In order to indicate that the connection restored is data industry to be used for
Business transmission is still used purely for signaling message exchange, another node (for example, communication controller node of such as MME) of communication network
Indicate that (for example, access network node of such as eNB) needs the terminal 702 for that will restore to re-establish specially to network entity 701
For transmitting the radio resource (for example, data radio carrying (DRB)) of data, or only need to be exclusively used in transmit signaling
Radio resource (for example, signaling radio bearer (SRB)).This instruction may, for example, be due to communication network request
Terminal does not send any data, but (it does not need to be exclusively used in transmitting the signaling procedure of execution such as tracking area update etc
The radio resource of data) the fact that.In this case, the instruction of network entity 701 will be sent to by communication network
It can be useful for passing to terminal 702, so that terminal 702 is informed to.
According to another embodiment, decision process includes checking in the message received for triggering the radio resource control
The special marker of recovery operation processed, wherein the label a value instruction using be exclusively used in transmission signaling radio resource and
Another value instruction for being exclusively used in both radio resources of transmission data, and marking, which is used only, is exclusively used in the wireless of transmission signaling
Electric resources.Label can be simple as individual bit.For example, communication network can send the instruction to recovery process, no
Need to be exclusively used in any radio money by this new token-passing data in suitable message (for example, paging message)
Source.Once network entity 701 receives message from communication network, it can create corresponding message in the sky, and (such as paging disappears
Breath), it is therefore an objective to triggering terminal 702 restores connection.To be the signaling received using only signaling or using network entity 701 and
Data are mapped in such message by sending in the air come the instruction restored.The terminal for receiving the message can be with
Request is avoided to be exclusively used in the radio resource of transmission data, even if the radio resource configuration information stored when suspending terminal can
It can include the radio resource for being exclusively used in transmission data.The embodiment, which additionally aids, effectively manages resource, because it is avoided
The radio resource for being exclusively used in transmission data is established when not needing to be exclusively used in the radio resource of transmission data.
According to embodiment, communication network includes access net and communication control net, and communicating network entities 701 are accesses
Network entity, for example, the base station of such as NodeB or eNB.This belongs to communication control net (such as core by showing in Fig. 9
Net) network entity 901 as example.In another embodiment, then radio resource reconfiguration process 804 may include
With reference to frame record is reconfigured, the content for reconfiguring frame record is arranged according to from the received information of communication control net
's.For example, communication control net entity (for example, MME) 901 can be in the creation nothing to be stored using message 902 appropriate
Line electric resources configuration information activates changing to network entity 701 (for example, eNB) instruction parameter when corresponding radio resource
Whether change/negotiation (such as QoS parameter) is possible at communication control net entity, and if it is, communication control net
Network entity 901 can optionally indicate which parameter may undergo change, such as instruction can carry out the range or not of selection from it
Same value.Communication control net entity 901 can have service related information, the service related information instruction change parameter for
Any service can not for certain specific services.In view of access network (for example, RAN) when terminal is restored next time can
There can be more available resources, it is contemplated that the parameter of change only again pauses for RRC IDLE or RRC- in terminal
It can just be applied before SUSPEND.That is, being provided in the recovery of next time using for executing radio resource configuration information or radio
The initial parameter that source is established, this will need network entity 701 and communication control net entity 901 keep initial parameter and by it
Be applied to without request change recovery process.
Another embodiment is described referring now to Figure 10.In this example, just as in the example of figure 9, there are examples
Such as access the network entity 901 in network entity 701 and such as communication control net in net.It is executed in network entity 701
Admission control procedure 1001 include to communication control net send radio resource propose message 1002.Network entity 901 is same
Sample is arranged to execute admission control procedure 1003 comprising receives radio resource from network entity 701 and proposes message
1002, and response message 1004 relevant to radio resource proposal message is sent as responding.The place of entity 701
Reason 1001 further includes receiving response message 1004.Entity 701 and 901 is then according to the content of the response message to operate
The connection status of recovery.
The admission control procedure 1003 executed in network entity 901 can be the license control according to any of the above described embodiments
Process processed, for example, the admission control procedure as described in conjunction with Fig. 8.
Radio resource proposes that message 1002 can be following one
Radio resource confirmation message, the radio resource confirmation message confirmation suspends in radio resource control grasps
The radio resource configuration information for including in the radio resource control information stored during making 703；And
Radio resource reconfiguration message, the radio resource reconfiguration message include radio resource reconfiguration letter
Breath, the radio resource reconfiguration information are used for using about storing during radio resource control pausing operation 703
The radio resource that resource control information is reconfigured operates restored connection status.
Response message 1004 can be following one
Positive acknowledgement message, the positive acknowledgement message confirmation propose that message is restored to operate according to radio resource
Connection status；And
New radio resource reconfiguration message, the new radio resource reconfiguration message include about to described
The radio resource configuration information that the radio resource that communication control net is sent proposes message to modify.
There is mutually isostructural another embodiment, the license of entity 701 with Figure 10 according to what is be shown as example in Figure 11
Control process 1101 is included at the first time to communication control net transmission the first radio resource proposal message 1102, and if
After the first time determine give radio resource propose revision condition, then to communication control system send from it is different
Propose that the associated second radio resource proposal of radio resource configuration information of message 1102 disappears in the first radio resource
Breath 1104.Then the admission control procedure 1103 of entity 901 may include receiving the first radio money in corresponding first time
Message 1102 is proposed in source, and is then executed and be used to determine whether to receive the monitoring that the second radio resource proposes message 1104
Process, the second radio resource propose that message 1104 proposes that the radio of message 1102 provides with the first radio resource is different from
Source configuration information is associated.
Preferably, determine whether that providing radio resource proposes the processing of revision condition only at the first time in entity 701
It is executed in predetermined time window later.Similarly, the monitoring process in entity 901 is only pre- after corresponding first time
Window of fixing time is interior to be executed.
Having the advantage that avoid in conjunction with Figure 11 embodiment described is causing in step 802 it is determined that carrying out
The condition reconfigured temporarily change in the case where radio resource configuration.Therefore, radio resource proposes that revision condition can be with
By determining 802 associated any suitable or desired modes with above-mentioned and selecting, and can be based on for next
Or the predetermined change (for example, being more than predetermined threshold) of multiple considerations:
The availability of radio resource at network entity 702,
The availability of radio resource at network entity 701,
Business load in communication network 110 belonging to network entity 701,
Business load in communication network 110 belonging to network entity 701,
The type for the information to be transmitted under restored connection status, for example, signaling and data or only signaling,
Restore to connect required or desired bandwidth.
Reception can be made to be directed to from the modification of entity 701 (such as RAN entity, such as eNB) according to the embodiment of Figure 11
The entity 901 (for example, MME) for the request for requesting the radio resource for the terminal restored to be established can not be modified in application immediately, and
It is that can wait given time quantum, is not temporary to ensure to trigger the condition of the request from entity 701.In such case
Under, entity 701 will establish radio resource according to the resource allocation information of preservation, and will pass through message according to preceding embodiment
1102 should modify radio resource application to the notice of entity 901.Entity 901 can receive modification, but answer by them
It is waited before radio resource for being established.As the condition at sporocarp 701 make it possible to radio resource is again true
It stands as the radio resource such as original storage in resource allocation information, then entity 701 can change so that notification entity 901 is previous
Change may not be needed, and entity 901 can keep resource allocation information constant.Such as sporocarp 901 is before application changes
To time window expire, then entity 901 will according to the request of entity 701 modify resource establish.
In another modification, the radio resource for receiving the modification from entity 701 for the terminal that request restores is established
Request entity 901 can not application modification immediately, but given time quantum can be waited, to ensure to trigger from entity
The condition of 701 request is not temporary.In this case, entity 701 can establish radio with applied modification
Resource, and according to previous embodiment, it notification entity 901 will apply modification to carrying at message 1102.It is real
Body 901 can receive modification, but wait before they are applied to established radio resource.As sporocarp 901 exists
It expires using the time window waited before changing, then entity 901 will be modified radio resource according to the request of entity 701 and be built
It is vertical.
For have been combined above message 706 description all above-described embodiments, if it is desired that with by radio
The radio money that the radio resource control information stored during resources control pausing operation is configured differently the mode that determines
Source is gathered to restore connection status, then method may include sending to reconfigure set of radio resources including belonging to terminal 702
The radio resource control of radio resource reconfiguration information communicates reconfiguration message.
According to another embodiment, one or more admission control procedures 705,1001,1003,1101,1103 are arranged to
So that the signaling connection identified in the radio resource control information stored during radio resource control pausing operation is kept
It is constant, even if to execute radio resource reconfiguration process to operate restored connection status.The advantages of technology is, such as
Fruit use identical network entity 701 (for example, eNB) recovery terminal 702, then the signaling connection ID stored when being connected with pause
So that communication control net node (such as MME and S-GW) makes again when starting and sending buffered DL data to terminal 702
Use them.When terminal caused by DL data when paging the same entity 701 triggered recovery, which is advantageous,
Because of the potentiality of boot time (1ead time) needed for it has reduction connection terminal.
More detailed embodiment will now be described, be related to the element and agreement of EPS/LTE system.Radio resource embodies
To carry, and radio resource control information is embodied as UE context.
Figure 14 shows the step of taking in UE (user equipment), RAN (radio access network) and CN (core net)
It summarizes.
As shown in 1401, when executing pausing operation, UE is moved to idle state, while UE context from state of activation
(AS context S1 and bearer context) is kept preservation in a network.Bearer context and S1 signaling connection are maintained at deactivation
State.The identifier for being directed toward its storage configuration is assigned for UE, which can be in the idle conversion to activation (that is, restoring
When) be referenced.As shown in 1402, it is assumed that UE wishes to restore connection, so that state of activation is moved to from idle state, and to
Service " the restoring ID " of the UE context in RAN signal notice mark RAN.As shown in 1403, RAN then execute about with UE
The admission control procedure of context-sensitive carrying.As shown in 1404, RAN is then to CN signal notice to when UE movement
The recovery indicative message of carrying associated with UE when to idle state.As shown in 1405,
Assuming that RAN cannot permit certain/all carryings in the case where having determined that in current carrying setting.Such as institute in 1406
Show, then RAN notifies indicative to the recovery of carrying associated with UE when UE is moved to idle state to CN signal
Message.However, RAN indicates the list of the carrying to be modified to MME and how to carry out this modification in such message
The list of details and the carrying to be deleted.As shown in 1407, if MME cannot permit in the setting of/suggestion current at it
All carryings associated with UE, then MME is answered using the list of the list of the carrying to be modified and the carrying to be deleted
It answers.MME notifies S-GW that this carrying changes.As shown in 1408, if MME receives repairing by the RAN bearer context proposed
Change, then it carrys out response using positive acknowledgement message, and notifies this change of S-GW.As shown in 1409, RAN and S-GW are subsequent
(newly modifying) carrying provides service.
In these embodiments, describe so that RAN and CN are able to determine whether can restore on the UE that has been suspended
Hereafter associated carrying and the method which carrying therein can be restored.RAN and CN will be only its resource when restoring
The carrying being licensed provides service.After checking whether carrying can be licensed, RAN and CN exchange of signaling message each other should
Signaling message according to be stored in UE AS context carrying setting come confirm carrying license, or alternatively instruction need by
Which bearing modification is applied to stored carrying configuration set, (wherein, may be used with obtaining the new bearing modification list to be permitted
To modify to existing carrying configuration or entire carrying list).
In one embodiment, the concept be applied to service RAN receive to by UE trigger or by CN trigger connection it is extensive
The case where multiple instruction, wherein UE had previously been sent to idle state and UE context is by for its pause.In this case,
RAN can determine that UE carrying cannot be licensed when obtaining UE bearer context, such as due to RAN loading condition.Therefore, RAN
It will for example determine which carrying can be licensed by operation admission control procedure not changing, which carrying should be repaired
Change and which carrying should be deleted.Therefore, RAN will need to re-establish UE radio money to MME instruction in the message
Source, but in identical message, RAN can describe the modification for UE bearer context, which is to permit UE to hold
Carry and need.In this example, MME can receive to be changed by the proposed carrying that RAN is proposed or MME can be proposed
The further change determined by its own condition, for example, it is associated with business load.MME by confirmation RAN change or
After proposing further change response RAN, the carrying newly modified is activated in the ran.MME, which also changes applied carrying, to be passed
Give S-GW.If MME proposes to further change carrying configuration, licensed carrying will comply with to be provided most by MME
Configuration eventually.Otherwise configuration license provided by RAN.
In one embodiment according to previous embodiment, RAN only indicates the carrying radio being successfully licensed to MME
The list of resource and radio resource fail the list of the carrying being established, and (alternatively, RAN only includes the carrying being licensed
List, to implicitly indicate that all unlisted carryings (it is known to MME) are not permitted).Receive this instruction
MME can be configured by sending positive acknowledgement message to receive new carrying.
Optionally, MME can the carrying to simplifying with the message for also indicating other bearing modifications come response from RAN
The instruction of list.Such bearing modification may include further decreasing to the carrying list established for UE, that is, MME will
Other carryings for not being reestablished of notice RAN.
In another embodiment, as a part for restoring signaling, RAN can indicate that some carryings need QoS to MME
(service quality) modification.It can be by recovery request (i.e. S1AP:UE context Activation message (S1AP=S1 application protocol))
In include the list of carrying to carry out this notice, the carrying it is to be modified and for it is each carry specified RAN will be preferred
The new qos parameter assigned.One reason of this request from RAN may be to be deficient in resources, this will make it impossible to use
Its current QoS is established to provide service for carrying, or has more resources can be used, rather than associated with current QoS.Example
Such as, RAN can request to change mean bit rate for particular bearer or request is changed ensures bit rate.It receives in this way
The MME of request can be by receiving the request come response.In another embodiment, the MME for receiving this request can be with
It is responded using the new qos parameter of the carrying of RAN request modification.RAN can accept or reject such parameter.
In another embodiment, as a part for restoring signaling, RAN can indicate that some carryings need QoS to repair to MME
Change.Can by include in recovery request (that is, S1AP:UE context Activation message) to for be re-established it is some/
The indicative instruction of QoS that all carrying requests change is to carry out this notice.This instruction can be to be directed to and each hold
The form of the new IE (cell) assigned is carried, cause value is arranged to for example " change QoS ".The MME for receiving this instruction can
With using including responding RAN for the message of the new qos parameter of impacted carrying, wherein such new qos parameter indicates
The change of QoS configuration, such as lower mean bit rate, lower ensures bit rate, lower dispatching priority and lower packetization delay
It is one or more in budget.
In another embodiment, request of the modification from RAN for the bearer context of the UE of request recovery is received
MME can not be modified in application immediately, but can wait given time quantum, to ensure to trigger the condition of the request from RAN
It is not temporary.In this case, RAN can establish carrying according to the UE bearer context of preservation, and will be according to elder generation
Preceding embodiment notifies MME to need modification being applied to carrying in S1AP:UE context activation.MME can receive modification,
But it is waited before they are applied to established carrying.If it is former with it that RAN conditions permit, which re-establishes carrying,
Beginning is stored in UE bearer context the same, then RAN can notify that MME may not be needed previous change, and MME can be with
Keep bearer context constant.If the time window that MME is waited before application changes expires, MME will be according to RAN's
Request is to modify bearer context.
In another embodiment, request of the modification from RAN for the bearer context of the UE of request recovery is received
MME can not be modified in application immediately, but can wait given time quantum, to ensure to trigger the condition of the request from RAN
It is not temporary.In this case, RAN can use applied modification to establish carrying, and will be according to previous reality
Apply example notifies MME that modification is applied to carrying in S1AP:UE context activation.MME can receive modification, but
They are applied to wait before established carrying.If the time window that MME is waited before application changes expires,
MME will modify bearer context according to the request of RAN.
In another embodiment of described method, after UE or CN triggering recovery process, RAN can check institute
Whether the configuration of the UE carrying of storage can be licensed, and may determine whether to authorize license.Therefore, RAN will be to MME signal
Notification message, message instruction should restore UE context, and indicate reactivate stored UE carrying configuration.CN
(that is, MME) can run the inspection that whether can be activated to the UE carrying configuration stored, and it can identify this example
Such as due to internal load condition but it is impossible.Therefore, MME can use including needing in the carrying that is stored in UE context
The message of the list of to be modified or deletion carrying is notified to RAN signal.RAN can receive this change, and correspondingly weigh
It is new to establish modified carrying.In this case, MME can request P-GW (grouped data network gateway) to confirm that carrying becomes
Change.
It should be noted that the feelings of the bearer context stored when the bearer context to be restored is suspended different from UE
Under condition, RAN should also modify the bearer context configuration for UE.This modification at UE can triggering eNB and MME it
Between for recovery signaling process before or after occur.Therefore, NAS (Non-Access Stratum) letter between UE and MME can occur
It enables, to notify bearer context to modify.
Figure 15 gives such as the general introduction previously with reference to the processing and message that execute in systems described in Fig. 6.With Fig. 6 phase
Than, it is noted that, it has been added to the admissions control mistake corresponding to previously described processing 1001,1003 and 1101,1103
Journey 5 and 10.More specifically, step 1-4 is as described above in conjunction with fig. 6.ENB executes admissions control in steps of 5, and as an example,
Determine the carrying for not re-establishing all pauses.Therefore, the response message (step 6) on RRC configures the carrying comprising update,
And step 7 (its message 5 for corresponding to Fig. 6 originally) is the affirmative acknowledgement for new bearer configuration from UE.Step 8 is right
It should will include the carrying configuration to MME notice update in the step 6 of Fig. 6, step 9 (its message 7 for corresponding to Fig. 6 originally)
S1AP grades of information.It may include that the example of the cell of this S1AP grades of information is shown in FIG. 16, it illustrates S1:UE to be included in
The example of information in context activation/positive acknowledgement message.
In addition, MME can determine to disapprove all carryings, in this case it is necessary to other signaling (step 13 and steps
Instruction in 14-15).In the latter case, the information similar with information shown in Figure 16 can be added to and be sent by MME
To in the message (i.e. S1:UE context activation/affirmative acknowledgement) of eNB.
The another of information conveyed in S1:UE context activation and S1:UE context activation affirmative acknowledgement is able to achieve
As shown in figure 17.In Figure 17, by being added not in S1:UE context activation and/or S1:UE context activation affirmative acknowledgement
The list for the E-RAB that can be established is come the related information of the carrying that provides with deleted.
It should be noted that E-RAB grades of qos parameter IE are optional in Figure 16 and Figure 17.That is, due to RAN
And/or MME does not support the function of the configuration of modification carrying when restoring, is intended to newly be assigned to when it is possible that not being included in recovery
The qos parameter of E-RAB.
According to Figure 16, the information by the E-RAB to be modified list and do not suffer from any modification E-RAB list group
At.By being directed to when UE is suspended, which stores upper and lower for the total list for the E-RAB (modification and unmodified) for including in message
The E-RAB composition of text.
From Figure 16 it is to be appreciated that E-RAB list to be modified includes to delete instruction.If such IE instruction is deleted, this
Mean that corresponding E-RAB is deleted in eNB or MME request.
In fig. 17 it is shown that how to include three lists of E-RAB.The E-RAB to be modified is considered in one list, and
And the details including needing how to modify them.Another list indicates the E-RAB to be established, i.e., it holds since UE is suspended
Carry those unaltered E-RAB of context.Third list includes the E-RAB for failing to establish, i.e. eNB requests to delete to MME
Those of E-RAB.
According to above-described embodiment, eNB has that configure using the new E-RAB notified to MME signal can come reconfigure UE
It can property.It is this reconfigure can eNB commencing signal notify MME before or once receive MME response after occur.
In MME, in the message for carrying out affirmative acknowledgement to the recovery request from eNB, (i.e. S1:UE context activation is answered certainly
Answer) in the case where provide information represented in Figure 16 and Figure 17 to eNB, MME can indicate which E-RAB exists to eNB
It can be licensed at core net, which E-RAB cannot be licensed and which E-RAB need to be to be modified.Change in MME instruction and asks
It asks under the latter case by the eNB UE context established, eNB should receive the change and by being suggested to UE is specified by MME
New E-RAB setting mode reconfigure UE via RRC protocol signaling.
In another embodiment of the invention, disappearing to the recovery request of the UE of previous pause is indicated to MME signal notice
The eNB of breath may not include downlink endpoint of a tunnel ID (DL TEID).
This means that MME storage is for each UE S1 signaling connection associated with UE carried when UE is suspended
DL TEID。
The advantages of technology, is, if restoring UE using identical eNB, the DL TEID stored, which to work as, to be started to lead to
When crossing S1-U interface and sending buffered DL user data, MME and S-GW are able to reuse that them.
When UE caused by DL user data when paging the same eNB triggered recovery, which is advantageous, because
There are the potentiality of boot time (lead time) needed for reducing connection UE for it.
At MME store DL TEID and do not transmitted in S1:UE context activation new DL TEID some advantages it is as follows:
In the case where other UE do not reuse DL TEID, the risk of DL user data relevant to different UE is transmitted
It is smaller；
- EPC can be applied to the transformation of connection status at S-GW, i.e., " just " overturning switches rather than refers to first
The DL TEID of Cefpirome Culfate；
First UL data for reaching S-GW are used as starting the triggering of DL user data delivery.That is, it is assumed that
DL TEID not yet deletes from S-GW and is stored securely in S-GW, as long as being then received for the UL data of identical UE,
S-GW can enable the DL data transmitting for the UE on the DL TEID stored；
- S-GW knows that UE restores at same eNB, because UL data reach UL TEID without receiving first repair
Change bearing request message；
Data from identical eNB are the triggerings that S-GW reuses existing DL TEID.
In addition to the above described embodiments, another method is proposed, according to this method, MME can be in UE context creation
When or in bearing activation to qos parameter change/negotiation of the eNB instruction at MME whether be possible, if it is, MME can
Optionally to indicate which QoS parameter may be subjected to changing, the range or different values that selection is carried out from it may indicate that.
MME can have service related information, and service related information instruction changes qos parameter for any service or for certain
Specific service can not.
In view of when UE restores next time, RAN may have more available resources, it might even be possible to, it is envisioned that the QoS changed
Parameter only can just be applied before UE again pauses for RRC_IDLE.That is, when restoring next time using once for holding
The original qos parameter that row UE context or carrying are established, this will require eNB and MME to keep original qos parameter and is applied to
The recovery process for not requesting QoS to change.
In another embodiment, in order to indicate UE recovery be due to data traffic transmission or purely due to signaling message
Exchange, CN needs to establish data radio carrying (DRB) for the UE that will restore to eNB instruction or instruction only needs signaling wireless
Electricity carrying (SRB).This instruction may be, for example, but to execute such as tracking area since network request UE does not send any data
The fact that signaling procedure (it does not need DRB) of area update etc.In this case, the instruction of eNB will be sent to from CN
Be also passed to UE can be it is useful so that UE is informed to.For example, CN can be sent pair by the new label in paging message
The instruction of the recovery process of any DRB is not needed.The new label can indicate to restore to be that should occur and only establishing SRB, also
It is to be also required to be established according to the DRB of the UE bearer context stored.Once RAN receives paging message from CN, it will be in sky
Middle creation is intended to trigger the paging message of UE recovery.The received instruction restored to DRB or SRB of RAN, which also may map to, to be passed through
In the such message sent in the air.The UE for receiving the message can be to avoid request DRB, even if the UE stored when suspending UE is held
Carrying context may include DRB.The enhancing additionally aids efficiently management resource, because it is avoided establishes DRB when not needed.
Idea of the invention can also be embodied by way of such as communicating network entities of entity 701 or 901.Figure 12
Show schematic block diagram, wherein network entity 1200 has for connecing with terminal and the communication communicated with other network entities
Mouth 1201, for the one or more processors 1202 of executive control operation, and is arranged to include forming radio resource
The storage system 1203 of two control instructions (such as in the form of software code partition) of control module 1204.Communication network
Network entity 1200 includes radio resource control (for example, the module when being loaded into processor 1202 with for executing
1204 code section), it is arranged to execute the admission control procedure according to any of above-described embodiment.
The present invention can also be presented as the computer program product including computer program code part, the computer program
Code section is arranged to execute above-mentioned when executing on the processing system of communicating network entities (for example, processor 1202)
The method of one embodiment in one embodiment of the method.Similarly, the present invention can be presented as that the corresponding computer program of carrying produces
The storage system of product, for example, storage system 1203.
Idea of the invention can also be embodied by way of such as terminal of terminal 702.Figure 13 is shown schematically
Block diagram, wherein terminal 1300 has the communication interface 1301 for communicating with one or more network entities, for executing control
The one or more processors 1302 of operation, and be arranged to include two controls to form radio resource control module 1304
The storage system 1303 of system instruction (such as in the form of software code partition).Terminal 1300 includes radio resource control
(for example, code section of the module 1304 when being loaded into processor 1302 with for executing), the radio resource
Controller is arranged to execute radio resource control recovery processing, and it includes determining root that the radio resource control, which restores processing,
According to the radio resource configuration Information recovering connection status stored, be also used to different radio resource configuration information with
For restoring connection status.
Above-mentioned concept allows the better processing to Internet resources (radio resource and Internet resources), because it allows
(for example, in RAN and/or CN) interdependent node neatly selects to be to reactivate previously to deposit for terminal when terminal is restored
Storage entire bearer context, once or terminal recovery just establish the bearer context simplified.This solves unnecessary hold
It carries and abandons or the problem of QoS difference, because being not required to carrying to be admitted will be dropped before recovery process is completed, and cannot be by
Carrying licensed by the QoS grade stored in bearer context will undergo QoS to negotiate (such as between RAN and CN), wherein QoS
It will be modified in a manner of it can successfully permit carrying.
According to another embodiment, RAN should be able to assess whether can to restore all carryings of previous pause, and if
Resource is unavailable, then RAN, which should have to CN, indicates which carries the means being not set up.It is important to note that, on UE
Prevent RAN operation admissions control from will imply that all E-RAB that must restore previous pause when hereafter restoring.Inadequate resource with
In the case where permitting all E-RAB, unconditional license completely may will affect the QoS of all activated carrying, because rare
Resource must be with the bearing shared that cannot more be licensed.This will have a negative impact to the Quality of experience of end user.
Thus it is pointed out that RAN can carry out admissions control to the carrying to be restored and indicate which carrying fails to be resumed
It is advantageous.
Similarly, in conventional systems, CN can indicate whether discharge certain carryings.This is managed in a variety of E-RAB
It is possible in process (such as S1:E-RAB release command).It is pointed out that CN is built when S1E-RAB establishes request
Found the freedom of the available E-RAB of its CN resource.Therefore, CN can run implicit admissions control when E-RAB is established.
UE context restore in the case where, the scene be it is equivalent, i.e. whether not CN should be able to detect certain E-RAB
It can be licensed, and should be able to be pointed out to RAN.It will imply that its resource of license is not available as described above, failing to do so
E-RAB causes potential impact to the QoS of all activated carrying.
Thus it is pointed out that CN can carry out admissions control to the carrying to be restored and indicate which carrying fails to be resumed be
It is advantageous.
Therefore, the present invention proposes to introduce system action, and RAN and CN, which can determine, can restore and have timed out
Which UE context-sensitive carrying.By this behavior, it is extensive in UE context that RAN and CN will only restore its resource
The carrying that can be licensed when multiple.
It follows in the behavior by having been used in the E-RAB management process of S1 interface, RAN and CN can be to will restore
Inhaul operation admissions control, and can each other signal notify which carrying be successfully recovered and which carrying not by
Restore.
Figure 18 illustrates how the admissions control for the carrying that UE context recovery process can be specified to allow to be restored
Example.
In step 1, service RAN receives the instruction to being triggered by UE or being restored by the connection of CN triggering, and wherein UE is previous
It is sent to idle state and is suspended for idle state UE context.
In step 2, RAN can be determined for example when obtaining UE bearer context since RAN loading condition UE is carried not
It can be licensed.Therefore, RAN will determine which carrying can be licensed, which carrying should not be resumed.
In step 3, RAN indicates which DRB is resumed to UE.
In step 4, RAN sends the specified UE context recovery request for needing to re-establish UE radio resource to MME.
In identical message, RAN can list the result as admissions control and fail the carrying restored.
In steps of 5, MME executes the inspection to the carrying for whether RAN plan being permitted to restore.If MME can not restore
Certain carryings, then this will be indicated to RAN using the list for the carrying for failing to restore in step 8 by it.
In step 6 and 7, the EPS carrying that MME receives to S-GW instruction, and S-GW carries out response to this.
In step 8, MME carrys out response eNB using UE context recovery response message, fails recovery wherein can list
Carrying.If there is the list for failing the carrying restored in step 8, eNB can pass through tradition in step 9 and step 10
Process reconfigures UE.
Pass through this mechanism, it can be ensured that the carrying of Yao Huifu only can permit holding for its resource from both RAN and CN
It carries.This greatly improves resource management and the Quality of experience of user in UE context recovery process.
Therefore, the present invention proposes after the pause of UE context, to the carrying to be restored when converting to activation the UE free time
Admissions control is executed, and the instruction to irreclaimable carrying is provided from eNB to MME (and vice versa).
Claims (29)
1. designed for supporting terminal (702,1300) and communication network in a kind of communicating network entities (701,901,1200)
(110) method of the radio resource control of the communication between, the communication network include communicating network entities (701,901,
1200) it, is carried on one or more radio resources between the communication network (110) and the terminal (702,1300)
The communication,
The terminal (702,1300) and the communication network (110) are arranged to support radio resource control pausing operation,
It is each in the terminal (702,1300) and the communication network (110) in the radio resource control pausing operation
The related corresponding radio resource control information of configured connection status of a storage and the terminal (702,1300), the nothing
Line electric resources control information includes belonging to the radio of set of radio resources associated with the configured connection status to provide
Source configuration information,
The terminal (702,1300) and the communication network (110) are also arranged to that radio resource control is supported to restore behaviour
Make, it is every in the terminal (702,1300) and the communication network (110) in the radio resource control recovery operation
One with reference to the radio resource control information that stores respectively with the connection status for restoring the terminal,
The described method includes:
Admission control procedure is executed during the radio resource control recovery operation, the admission control procedure includes following
Process: inspection is to restore the connection status according to the radio resource configuration information stored, or execute radio money
Source reconfiguration course is for restoring the connection status.
2. according to the method described in claim 1, wherein, the radio resource reconfiguration process includes according to the nothing stored
Line electric resources configuration information checks which of described set of radio resources associated with the configured connection status
Radio resource is to be admitted.
3. method according to claim 1 or 2, wherein the radio resource reconfiguration process includes: to check comparing
It is associated described wireless with the configured connection status after the radio resource configuration information stored is modified
Which radio resource in electric resources set can be licensed.
4. according to the method described in claim 3, wherein, the modification is related to QoS parameter.
5. method according to claim 1 or 2, wherein the radio resource reconfiguration process include check with it is described
Which radio resource cannot be licensed in the configured associated set of radio resources of connection status.
6. method according to claim 1 or 2, wherein the radio resource reconfiguration process includes: to work as described in recovery
When connection status, checks whether to add and be different from the radio resource collection associated with the configured connection status
The new radio resource closed.
7. method according to claim 1 or 2, wherein the admission control procedure includes for determining it is to be used only specially
Restore the connection status for transmitting the radio resource of signaling, be also used to be exclusively used in the radio money of transmission signaling
Restore the decision process of the connection status with both radio resources of transmission data are exclusively used in source.
8. according to the method described in claim 7, wherein, the decision process includes checking in the message received for triggering
The special marker of the radio resource control recovery operation.
9. method according to claim 1 or 2, wherein the communication network (110) includes access net (102) and communicates
It controls network (103), and the communicating network entities (701,901,1200) are access network entities.
10. according to the method described in claim 9, wherein, the radio resource reconfiguration process includes that reference reconfigures frame
Frame record, the content for reconfiguring frame record are arranged according to from the received information of the communication control net.
11. according to the method described in claim 9, wherein, the admission control procedure includes to the communication control net
(110) it sends radio resource and proposes message, receive from the communication control net (110) and disappear with radio resource proposal
Relevant response message is ceased, and then operates restored connection status according to the content of the response message.
12. according to the method for claim 11, wherein the radio resource proposes that message is following one:
Radio resource confirmation message, the radio resource confirmation message confirmation suspends in the radio resource control grasps
The radio resource configuration information for including in the radio resource control information stored during work；And
Radio resource reconfiguration message, the radio resource reconfiguration message include radio resource reconfiguration information, institute
Radio resource reconfiguration information is stated for using about the resource stored during the radio resource control pausing operation
The radio resource that information is reconfigured is controlled to operate restored connection status.
13. according to the method for claim 12, wherein the response message is following one:
Positive acknowledgement message, the positive acknowledgement message confirmation propose message according to radio resource to operate restored company
Connect state；And
New radio resource reconfiguration message, the new radio resource reconfiguration message include about to the communication
The radio resource configuration information that the radio resource that control network is sent proposes message to modify.
14. according to the method for claim 11, wherein the admission control procedure includes: to lead in first time to described
Letter control network sends the first radio resource and proposes message, and if determination gives radio after the first time
Resource proposes revision condition, then sends to the communication control system and be different from first radio resource proposal message
Associated second radio resource of radio resource configuration information proposes message.
15. according to the method for claim 14, wherein determine whether to provide the process that radio resource proposes revision condition
Only executed in the predetermined time window after the first time.
16. according to the method described in claim 9, wherein, if it is desired that with by suspending in the radio resource control
The radio resource control information stored during operation determines radio resource collection that set of radio resources is configured differently
It closes to restore the connection status, then sending to the terminal includes belonging to the radio resource for reconfiguring set of radio resources
The radio resource control of reconfiguration information communicates reconfiguration message.
17. method according to claim 1 or 2, wherein the communication network (110) includes access net (103) and communicates
It controls network (103), and the communicating network entities (701,901,1200) are communication control net entity (901).
18. according to the method for claim 17, wherein the admission control procedure includes connecing from the access net (102)
It receives radio resource and proposes message, send response message relevant to radio resource proposal message to access net,
And restored connection status is then operated according to the content of the response message.
19. according to the method for claim 18, wherein the radio resource proposes that message is following one:
Radio resource confirmation message, the radio resource confirmation message confirmation suspends in the radio resource control grasps
The radio resource configuration information for including in the radio resource control information stored during work；And
Radio resource reconfiguration message, the radio resource reconfiguration message include radio resource reconfiguration information, institute
Radio resource reconfiguration information is stated for using about the resource stored during the radio resource control pausing operation
The radio resource that information is reconfigured is controlled to operate restored connection status.
20. according to the method for claim 19, wherein the response message is following one:
Positive acknowledgement message, the positive acknowledgement message confirmation propose message according to radio resource to operate restored company
Connect state；And
New radio resource reconfiguration message, the new radio resource reconfiguration message include about to the communication
The radio resource configuration information that the radio resource that control network entity is sent proposes message to modify.
21. according to the method for claim 18, wherein the admission control procedure includes: to connect in first time from described
It networks and receives the first radio resource proposal message, and then execute and be used to determine whether to receive the proposal of the second radio resource
The monitoring process of message, second radio resource propose message be different to the communication control net entity (701,
901,1200) first radio resource sent proposes that the radio resource configuration information of message is associated.
22. according to the method for claim 21, wherein the monitoring process only pre- timing after the first time
Between execute in window.
23. method according to claim 1 or 2, wherein the admission control procedure is arranged such that even if executing
Radio resource reconfiguration process during the radio resource control pausing operation to deposit for restoring the connection status
The signaling connection identified in the radio resource control information of storage also remains unchanged.
24. a kind of computer-readable medium, is stored with computer program, the computer program can be executed by processor to hold
Row is according to claim 1 to method described in one in 23.
25. a kind of communicating network entities (701,901,1200) are designed to that terminal (702,1300) is supported to lead to including described
Communication between the communication network (110) of communication network entity (701,901,1200), holds on one or more radio resources
Carry the communication between the communication network (110) and the terminal (702,1300), the terminal (702,1300) and institute
It states communication network (110) to be arranged to support radio resource control pausing operation, suspends in the radio resource control and grasp
In work, the configured company of each of the terminal (702,1300) and the communication network (110) storage and the terminal
Connect the relevant corresponding radio resource control information of state, the radio resource control information include belong to it is described configured
The radio resource configuration information of the associated set of radio resources of connection status, the terminal (702,1300) and described logical
Communication network (110) is also arranged to support radio resource control recovery operation, in the radio resource control recovery operation
In, each of the terminal (702,1300) and the communication network (110) are with reference to the radio resource control stored respectively
Information processed with for restoring the connection status of the terminal (702,1300),
The communicating network entities (701,901,1200) include radio resource control, the radio resource control quilt
Arrangement are as follows: admission control procedure is executed during the radio resource control recovery operation, the admission control procedure includes
Following procedure: inspection is to restore the connection status according to the radio resource configuration information stored, or execute wireless
Electric resources reconfiguration course is for restoring the connection status.
26. communicating network entities (701,901,1200) according to claim 25, the communicating network entities include
eNB。
27. communicating network entities (701,901,1200) according to claim 26, the communicating network entities are eNB.
28. communicating network entities (701,901,1200) according to claim 25, the communicating network entities include moving
Mobility management entity.
29. communicating network entities (701,901,1200) according to claim 28, the communicating network entities are mobile
Property management entity.
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| RU2019106527A (en) | 2019-03-28 |
| ES2912981T3 (en) | 2022-05-30 |
| US20180035420A1 (en) | 2018-02-01 |
| EP3484233B1 (en) | 2022-03-09 |
| DK3484233T3 (en) | 2022-03-28 |
| CN107995688A (en) | 2018-05-04 |
| CN107995688B (en) | 2021-06-25 |
| CN107251643A (en) | 2017-10-13 |
| BR112017014947A2 (en) | 2018-03-13 |
| PT3241401T (en) | 2018-07-05 |
| EP4255096A3 (en) | 2024-01-24 |
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